An Ethernet cable lets you physically wire your internet to your computer, rather than having to rely on a more finicky Wi-Fi connection.
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Make Gigabit Ethernet connections with PoE support. This Cat6 cable delivers reliable Gigabit network connections, which ensures high-performance
StarTech.com 6ft CAT6 Ethernet Cable Blue Snagless UTP CAT 6 Gigabit Cord/Wire 100W PoE 650MHz
Can run an Ethernet cable from my modem to my shop and plug into router? : r/HomeNetworking